泵

RII series of high-temperature high-pressure hot water circulating pump is the sole high-temperature high-pressure hot water circulating pump that adopts special combination patent sealing in China. Its technological performance and sealing structure are internationally advanced. It has 2 state invention patents and has been awarded provincial and mu (1mu=1/15 hectare)nicipal scientific and technological advancement award.

RII系列高温高压热水循环泵是国内唯一一家采用特殊组合专利密封的高温高压热水循环泵，产品技术性能和密封结构处于国际先进水平，拥有2项国家发明专利，并荣获省市科技进步奖。

A condition monitoring and fault diagnosis system of engine pumping unit is designed in this article.

构建了一种状态监测与故障诊断系统，它的主要对象是发动机油泵，研制该系统的目的是为了实时掌握泵机组的运行状态，并能对泵机组实现一定的自动工况调节。

Cited Pistons pull vent valve 10-valve piston cited the role of pulling out are seized cylinder piston rod, when its mild in China emerged after the main hydraulic cylinder rod cavity and there is no cavity under the pressure dropped, so that the main hydraulic cylinder in motion the process of increasing resistance to the main pump to increase the load, resulting in engine speed when pumping declining situation.

3活塞引拔阀内泄活塞引拔阀10的作用是拉出检缸活塞杆，当其出现轻度内泄后，主液压缸无杆腔和有杆腔的压差下降，使主液压缸动作过程中阻力增加，使主泵负荷加大，导致泵送时出现发动机转速下降的现象。

Side pumped continuous wave and quasi-continuous Nd: YAG laser. The threshold and output power formula of side pumped CW Nd: YAG lasers have been derived out from the four lever rate-equations.

侧面泵浦的连续和准连续Nd：YAG激光器从泵浦光与振荡光空间分布相关的四能级速率方程出发，推导出连续运转的激光输出特性。

An explicit analytical solution of the threshold pump power of the laser has been derived based on rate equations which contain the attenuation coefficients of the pump and laser radiations as well as the major contribution of the re-emission of the upper level atoms to the pump wave by using the analytical solutions. An analytical solution of the minimum fiber length required for the onset of the oscillation is presented. In addition, the analytical solutions describing the variations of the density of the pump radiation and upper laser level population along the fiber length have also been given.

从速率方程组出发，在不忽略光纤损耗系数和保留再发射项主导部分的近似条件下推导出了双包层光纤激光器阈值泵浦功率的显函数解析表达式，得到了光纤激光器产生振荡所需的最小光纤长度的显函数解析解；还给出了泵浦光子数密度和上能级粒子数密度沿光纤方向随光纤长度变化的显函数解析解。

In view of the current situation that sand is short of supply as well as in poor quality in Beijing, the article analyzes the effects of the main technology index of the machine-made sand on the quality of the ready-mixed pumped concrete.

针对目前北京建筑用砂短缺、质次的现状，本文对机制砂的主要技术指标对预拌泵送混凝土的影响进行了试验分析，试验研究了机制砂对预拌泵送混凝土的和易性与强度的影响。

In view of the current situation that sand is short of supply as well as in poor quality in Beijing, the article analyzes the effects of the main technology index of the machine-made sand on the quality of the ready-mixed pumped concrete.

针对目前北京建筑用砂短缺、质次的现状，本文对机制沙的主要技术指标对预拌泵送混凝土的影响进行了试验分析，试验研究了机制沙对预拌泵送混凝土的和易性与强度的影响。

In view of the current situation that sand is short of supply as well as in poor quality in Beijing, the article analyzes the effects of the main technology index of the machine-made sand on the quality of the ready-mixed pumped concrete.

针对目前北京建筑用砂短缺、质次的现状，本文对机制打砂机的主要技术指标对预拌泵送混凝土的影响进行了试验分析，试验研究了机制打砂机对预拌泵送混凝土的和易性与强度的影响。

A new type of mud pump with high flow, high pressure, compactness and light weight is designed for truck mounted water well drill rig, tackling the difficulty in mud pump matching.

为车装水文水井钻机设计大流量、压力、体积、质量的新型泥浆泵，解决其泥浆泵配套难的问题。

Waste plastic box to protect ball Waste plastic box to protect ball Northwest Oilfield Branch Ministry of oil and gas distribution gas transmission team round of the gate, the station has all of the 34 ball on the plastic protective cover is installed, even if the waste plastic boxes are used, but also to protect the ball.

Waste plastic box to protect ball ；是由上海赛泰泵阀有限公司提供的阀门新闻，中文译文仅供参考(上海赛泰泵阀有限公司还生产电动执行器特殊阀门电站阀门平衡阀水力控制阀及衬氟旋塞阀，衬氟截止阀，高温高压电磁阀，氧气截止阀，微型电磁阀，欢迎您的选购。)废旧塑料盒保护球阀西北油田分公司油气运销部输气队轮台门站近日在34个球阀上全部安装了塑料防护罩，既使废塑料盒得到利用，又保护了球阀。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷